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The
Professional RF Signal Generator IG-42
came
on the market in 1962 and was produced until 1979. It was the successor
of the LG-1 that came on the market in
1953. There is only minor differences between the LG-1 and the IG-42.
The IG-5242
replaced the IG-42
and was
produced until 1980. Again there
is only minor differences between the IG-42 and the IG-5242. Mostly it is a matter of different
color and style. The IG-42 is
heaviliy screened and is a more professional grade Signal Generator
compared to the IG-102. On my IG-42
I have
replaced
the RF output connector to the BNC-type. Some of the knobs are not the
original ones but they were replaced already when I got it.
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